Is Outer Space A Global Commons Or Just Unclaimed Property?
Introduction
The first man was sent into space in 1961; since then, humanity has made significant progress. In 1961, space was a symbol of scientific ambition and geopolitical rivalry. Today, it is increasingly viewed as a site of commercial opportunity. Private companies launch satellites, plan resource extraction, and compete for orbital space at a pace unimaginable during the early years of space exploration. From aiming to be superior in the space war to extracting resources for profit, both the speed and direction of space travel have undergone significant changes. This raises a question: Is space common to all, or a property waiting to be claimed?
The Idea Of Global Commons
A global common is understood to be a supranational domain outside national jurisdiction that contains a common pool of resources for all. Unlike territory within a state’s borders, no single actor can claim sovereignty over such spaces. Historically, the concept originated in the British Isles, referring to the common lands of villages or towns, where communities shared rights over resources, such as grazing grounds.
The United Nations has identified four global commons: the high seas, the atmosphere (air space over the high seas), Antarctica, and outer space. Believing that they are too important to be reduced to private or national ownership. The principle behind the global commons is that some planetary spaces should preserve the freedom of access and benefits of all.
Why the concept of “unclaimed property” keeps resurfacing.
The idea of treating shared resources as property often resurfaces when the concept of the commons appears unable to regulate competing interests. Garrett Hardin, in his essay “Tragedy of the Commons”, argued that individual actors automatically tend to overexploit and plunder the common-pool resources that are freely available to everyone; accordingly, the only possible solution was “the enclosure of resources through private property or, failing that, public regulation”.
A similar logic can be observed in contemporary space activity. Both state and private players operate in space. States use space for national security and telecommunication. Competition for limited orbital slots has intensified, and actors with greater financial and technological capacity are better positioned to secure favourable access. As use increasingly resembles occupation and control, the language of shared commons gives way to debates about whether outer space functions, in practice, as unclaimed property accessible to those with the means to exploit it.
Where does outer space actually fit today?
The Outer Space Treaty (OST) outright rejects sovereignty over outer space, which is approx. 100 km above the land, and is treated as an unofficial boundary between airspace and outer space. It also defines outer space as a common resource of humanity, free for access by all states. This stance is also reiterated in other treaties, like the Artemis Accord. However, these treaties are silent on the sharing of the benefits from the exploration.
This creates the main friction; it’s like saying, “You can access it, but too bad you don’t have the resources to access it.” If there is no central authority to allocate space resources, such as orbital slots, to players with limited resources and give them the opportunity to grow, is space even accessible to all, let alone be a global commons? To date, only eight countries have reached this milestone, and none of them are transparent about sharing the benefits they have reaped. Global commons should be resources that benefit all, not places that are accessible only on paper.
Conclusion
In law, outer space continues to be described as a global commons, free from sovereignty and formally accessible to all states. In practice, however, meaningful access depends on technological and financial capacity, allowing a small group of actors to dominate its use. This gap between legal principle and operational reality explains why the language of unclaimed property keeps resurfacing.
Outer space has not been transformed into property in the strict legal sense; however, it also does not function as a commons that benefits all equally. As long as international law guarantees access without addressing unequal participation and benefit-sharing, the idea of space as a global commons will remain largely theoretical. For now, outer space exists in a grey zone, owned by none, governed by law, but shaped by power.
